Profile: Touchwood Products is a supplier of window hardwares. We offer window fasteners, cam locks, locking device, cord cleats, lift balances and trickle vents. Our AirLock™ is a locking device used in vertical timber sliding sash windows and allows a window to be partly open but at the same time to be locked allowing ventilation into the room and increasing circulation but preventing the window from being fully opened, perfect on those warm summer nights.